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Finding the Fourth Proportional to 242,989.45, 364,188.67 and 171,932.56

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Solution

The fourth proportional to 242,989.45, 364,188.67 and 171,932.56 is: 257,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,989.45 : 364,188.67 = 171,932.56 : x
  2. Step 2: Convert to fraction form
    242,989.45/364,188.67 = 171,932.56/x
  3. Step 3: Cross multiply
    242,989.45x = 364,188.67 × 171,932.56
  4. Step 4: Simplify right side
    242,989.45x = 62,615,887,675.49
  5. Step 5: Solve for x
    x = 62,615,887,675.49/242,989.45
  6. Step 6: Final answer
    x = 257,689.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.